102155313112 has 8 divisors (see below), whose sum is σ = 191541212100. Its totient is φ = 51077656552.

The previous prime is 102155313107. The next prime is 102155313121. The reversal of 102155313112 is 211313551201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6384707062 + ... + 6384707077.

Almost surely, 2^102155313112 is an apocalyptic number.

It is an amenable number.

102155313112 is a deficient number, since it is larger than the sum of its proper divisors (89385898988).

102155313112 is a wasteful number, since it uses less digits than its factorization.

102155313112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12769414145 (or 12769414141 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 102155313112 its reverse (211313551201), we get a palindrome (313468864313).

The spelling of 102155313112 in words is "one hundred two billion, one hundred fifty-five million, three hundred thirteen thousand, one hundred twelve".